Typewriting machine



Sept. 22, 1925; v I c. a. coRcoRAN TYPEWRITING MACHINE Filed April 14,1921 Affor ey Patented Sept. 22, 1925.

UNITED STATES PATENT OFFICE.

CORNELITJ'S B. CORCORAN, OE BHO'ENIX, ARIZONA, ASSIGNOB/ TO UNDEBVVOODTYPE- XVRITER COMPANY, O'FNEW YORK, N. Y., A CORPORATION OF DELAWARE.

ryrnwnrrme MACHINE.

Application filed April 14, 1921. Serial No. 461,179.

To all whom it may concern: v

Be it known that I, CoRNnLIUs B. COR- CORAN, a citizen of the UnitedStates, resids ing in Phoenix, in the county of Maricopa and State ofArizona, have invented certain new and useful Improvements inTypewriting Machines, of which the following is a specification.

r This invention relates to means for retaining a typewriting machine ona base-board or desk. l leretofore, typewriting machines have beenretained by a direct connection between the machine and the base-board,thus affording a conductor for the vibration of the typewriter throughthe retaining device to the base-board.

An object of the present invention isto eliminate the possibility ofconducting vibration through the retaining device to the support such aswould tend to augment the sound produced by the operationof the machine.Each retaining device may consist of two elements, one on the machineframe, the other attached to the base-board. These two elements hear ane fective relation to each other, but do not contact, so that thetypewriter has no connection to the support by which. thesound-producing vibration is transmitted. The usual soft rubber feet mayfit into sockets in the board or support.

One of said. two elements may be adownwardly-projecting stud, which isattached to the typewriting machine, and the head of which is insertedin a keyholerslot in the other of said elements, which is made fast tothe support. The machine may be easily detached from the base-board orsupport.

mien the base-board, which may com: prise a part of a desk, is swung toan inclined position to lower the typewriting machine into the back partof the desk, the retaining device holds the machine to the base-board. I

In the accompanying drawings,

Figure 1 is a diagrammatic view of an Underwood typewriting machineframe, showing the invention applied thereto, parts being in section.

Figure 2 is a view similar to Figure 1, showing the rear feet lifted outof the holes in the baseboard, to bring the stud-head to the largeropening of the keyhole slot.

Figure 3 is a rear cross-sectional view of an Underwood typewritingmachine frame, showing the invention.

Figure l is a perspective view of the bracket, which receives thedownwardlyprojecting stud. r

Figure 5 is a top view of the bracket, showing the stud-head in its twopositions in the keyhole slot. 1 i

The .Underwood typewriting machine comprises a frame 1 having flexiblefeet 2 attached thereto by screws 3 projecting up into the frame 1.Thefeet 2 engage holes or sockets 4 in the base-board or support 5,which. may be part of a desk, and connected in the usual manner, so asto enable the board to be tilted rearwardly and to an inclined position.

The retaining means 6, which is provided at both sides of the machine,comprises a stud or screw 7 having ahead 11 and projecting upwardly intothe lug 8 of the typewriting machine frame 1, and is provided with aretaining nut 9. lVhen the screw 7 is properly adjusted, the nut 9 maybelocked by a screw 10. i i I The head 11 of thescrew 7 is adapted forinsertion into a keyhole slot12 ina U-shaped bracket 18 made fast to thesupport 5 by means ofscrews 14c. WVhen themachineis to be placed on itssupport, the front feet are inserted in their respective sockets, andthe machine slightly tilted. The machine is then brought slightlyforward, so as to bring the head 11 of the screw 7 into alignment withthe larger opening of the keyhole slot 12 in the bracket 13, Therear ofthe machine is then lowered far enough to bring the head 11 below theslot 12, after which the machine may be moved rearwardly,so that theback feet will fit into their sockets. The head 11 will be positionedunder the smaller opening of the keyhole slot 12, thereby preventing themachine from being lifted off from its support. While the latter is inits horizontal position, there is no direct connection between the stud7 and the bracket 18; but as soon as the support is tilted rearwardly,the head 11 of the stud 7 will co-operate with the bracket 13 to retainthe machine.

T 0 remove the stud from the bracket, the rear feet may be lifted out ofthe sockets, and the front feet, being flexible, will bend, and therebypermit the heads of the studs to be moved to position under the largeropenings of the keyhole slots. The machine may be then lifted off fromthe support.

Variations may be resorted to within the scope of the invention, andportions of the improvements may be used without others.

Having thus described my invention, I claim:

1. The combination with a typewriting machine having a frame, ofyieldable and flexible feet upon the frame, a support having recesses,one for each of the feet, to fix the machine relatively to the support,said recesses surrounding the yieldable feet when they are in therecesses and preventing the feet from being slid along on the recesses,and a device for preventing separation of the machine and support,comprising a bracket fixed to the support and having a key-hole slottherein, and a headed stud fixed to the machine-frame and received inthe slot of the bracket, the head of the stud being out of contact withthe bracket, and the yieldable feet of the machine co-acting with thewalls of the recesses in the support to locate and maintain the shank ofthe stud in proximity to, but out of contact with, the

sides and end of the slot, whereby the transmission of sound-producingvibration through the stud and bracket to the support is avoided.

2. The combination With a typewriting machine having a frame, of rubberfeet on the frame, a support having recesses therein, one for each ofthe rubber feet, to fix the machine in a definite position on thesupport, and means for preventing accidental separation of the machineand support when the support is tilted, comprising a bracket made fastto the support and having a keyhole slot therein, and a headed stud onthe machine-frame, the shank of the stud passing through the restrictedportion of the key-hole slot and being located and main tained inproximity to the walls of the keyhole slot, but out of contacttherewith, by the co-operation of the rubber feet on the machine and therecesses in the support, so that transmission of sound producingvibration to the support is avoided, the bracket and I stud beingseparable at the will of the operator to permit separation of themachine and support, but only by forcing the machine away from itsnormal position against the opposition of said rubber feet to bring thehead of the stud into alignment with the enlarged portion of thekey-hole slot and then withdrawing the machine.

3. The combination with a typewriting machine having yieldable rubberfeet, of a tiltable support therefor, means positively preventingseparation of the machine from the support, when the support is tilted,comprising inter-loosely engageable retaining members on themachine-frame and on the support, and means compelling said retainingmembers to remain in inter-engagement with each other at all times, butout of ac tual contact with each other during writing operations,comprising fixed sockets on the support, one for each of the rubberfeet, the rubber feet and sockets cooperating to maintain theinter-engaging members in cooperable relation, but preventing thetransmission of sound producing vibration through the inter-engagingmembers to the support.

4. The combination with, a typewriting machine having a frame, of frontand back feet on the frame, the front feet being flexible, a support forthe machine, said support having recesses into which the feet areplaced, the wall of the recesses for the back feet extended around andcontacting with them whereby the wall holds the feet against being slidalong in the recesses, the flexible feet in the recesses allowing themachine to be moved slightly forward and then backwardswithout liftingthem out of their recesses and dropped down at its rear, thereby fittingthe rear feet into the recesses provided for them, and means,independent of the feet, connecting the machine and support andpreventing the feetfrom lifting out of the recesses upon the tilting ofthe support.

CORNELIUS B. CORCORAN.

